Privilege escalation in Windows Print Spooler service in Windows and Windows Server - CVE-2016-3239

Detailed vulnerability description

The vulnerability allows a local user to elevate privileges on vulnerable system.

The vulnerability exists due to Windows Print Spooler service allows arbitrary writing to the file system to unprivileged users. A local user can overwrite arbitrary files on the system.

Successful exploitation of this vulnerability may allow a local user to execute arbitrary code on the target system with elevated privileges.

How to mitigate CVE-2016-3239

To resolve this vulnerability vendor recommends installing the following updates:

Windows Vista

Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 2

Windows Server 2008

Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for Itanium-based Systems Service Pack 2

Windows 7

Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems Service Pack 1

Windows Server 2008 R2

Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1

Windows 8.1

Windows 8.1 for 32-bit Systems
Windows 8.1 for x64-based Systems

Windows Server 2012 and Windows Server 2012 R2

Windows Server 2012
Windows Server 2012 R2

Windows RT 8.1

Use Windows Update to obtain the patch.

Windows 10

Windows 10 for 32-bit Systems
Windows 10 for x64-based Systems
Windows 10 Version 1511 for 32-bit Systems
Windows 10 Version 1511 for x64-based Systems

Server Core installation option

Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2012
Windows Server 2012 R2

Sources

• https://technet.microsoft.com/en-us/library/security/MS16-087